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Based on flexibility and converse piezoelectric effect of PVDF, a laminated PVDF actuator (LPA) with hyperbolical surface is designed and attached on a paraboloidal shell partially. Models of control forces are established according to thin flexible shell theory and membrane approximation, respectively. Analytical expressions of actuating forces and moments are derived and detailed parametric study...
In this paper, a new piezoelectric stack actuator is proposed, and the modeling and simulation are completed. Generally, piezoelectric stack can take significant compressive loads but cannot tolerate tension, so this new actuator is designed that can obtain obvious bilateral actuated outputs. This actuator is made of two piezoelectric stacks and a bilateral output device. By controlling the voltage...
This paper deals with the shape control of a cantilever thin plate structure by using laminated piezoelectric actuators (LPA). The shape control equation of the cantilever thin plate partially covered with LPA is derived based on the constitutive relations of the elastic material and piezoelectric material and the thin plate deformation theory. The actuating forces produced by LPA are formulated as...
There is littler study on the multi-layer piezoelectric actuator (MPA) for the active vibration control. In this paper, the experimental study on adaptive LMS-based active vibration control of cantilever honeycomb sandwich panel using multi-layer piezoelectric actuator is developed. The governing equations of the honeycomb panel included MPA are derived and the actuated forces of MPA are analyzed...
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